Strap for Datejust 31 Rolesor Yellow Diamond / Oyster / MOP Roman

The lug width of the 178383-0015 reference is 16 millimetres. This width is specific to this model and not interchangeable with other Datejust variants. Measuring the lug width correctly is essential when selecting a bespoke leather strap: position a ruler perpendicularly to the lug shoulders where the strap attaches to the case.

For the 31mm stainless steel and yellow gold version, we recommend American alligator or Italian calf leather with vegetable tanning. Alligator maintains a regular grain structure over time and naturally coordinates with the yellow gold element; calf develops a rich patina that deepens the colour depth, complementing both steel and gold. Both materials offer superior comfort and decade-long durability.

The procedure requires a specific tool called a spring bar removal tool. Position the watch on a soft surface, locate the side lugs and use the spring bar tool to compress the spring bars connecting the strap to the case. Remove the bar, detach the old strap and insert the new one, aligning the lug holes correctly with the bars. If uncertain, entrust the operation to a qualified watchmaker.

Yes, provided the lug width is exactly 16 millimetres and the strap is constructed to artisanal quality standards. Compatibility concerns precision rather than brand: the lug must have calibrated thickness and width to interface correctly with the spring bars of the Rolex case. Bespoke straps from specialised workshops guarantee precision and durability.

Durability depends on leather type, frequency of use and maintenance. Italian calf with vegetable tanning resists 3 to 5 years of daily wear; alligator, more resistant, may last 5-7 years. Factors such as humidity, sun exposure and perspiration accelerate ageing. Conditioning the leather every 6-12 months with appropriate oils and storing the watch in dry environments significantly extend strap lifespan.